Paper carton.



L. W. FARMER.

PAPER CARTON.

APPLICATION FILED mm. 4. 1914.

Patented July 16,- 1918.

'ziveasear LUKE W. FARMER, 0F SOMERVILLE, MASSACHUSETTS.

PAPER CARTON.

Specification of Letters Patent. Patented July 16, 918.

Application filed March 4, 1914. Serial No. 822,260.

To all whom it may concern:

Be it known that I, LUKE W. FARMER, a citizen of the United States,residing at Somerville, in the county of 'Middlesex and StateofMassachusetts, have invented an Improvement 'llT Paper Cartons, of whichthe following is a specification.

My inventlon relates to improvements in paper cartons such as are usedto contain liquid or semi-liquid foods or other substances.

As is well lmown, the ordinary paper cartons of cylindrical or polygonalshape, and having a tight closure, cannot be nested 0r packed closelywith others of a like shape,

. consequentlymuch space is sacrificed in the packing of the same forshipment or other-- wise. To overcome, this difiiculty, paper cartonshave been made. of frusto-conical shape, but much dilficulty isencountered in making a tight closure of a practical form.

This invention has for its object the construction of a paper carton ofsuch a shape as to be nested or. placed one within the,

other for compact packing, and arranged to receive a simple form offlanged cap, by which to tightly close it.

My invention consistsof a frusto-conical body, composed of paper, of astiif quality, such as tag-stock, or the like, and a cap-. receivingcollar arranged at its upper endportion and securely attached thereto,the cap-engaging surface of which is cylindrica, and a closing-cap,usually of paper, adapted to engage tightly the cylindrical cap-engagingsurface of the collar.

Figure 1' is'a combined section and new.

tion of a carton embodying my invention. Fig. 2 is an enlarged detailsection of a part of the upperen'd-portion of the body of'the cartonwlth collar attached.

Thebody-portion 3 of the carton is of frusto-conical shape andconstructed of one or more layers of paper, such. as tag-stock,pasteboard, or the like, the lower end-portion or bottom of the samebeing closed by any suitable means, so far as my present invention isconcerned. To the upper endportion of the body 3, is attached a collaror cap-receiving member which, in the pro ferred form as here shown, iscomposedof numerous superimposed paper" strips' ofvarying width.

The collar as here shown, is composed 9f three elements, namely, a thickouter strip orband 4- 0f. cylindrical formand of; the

full width of the collar, a' narrow strip 5 arranged within said i outerstrip or band and at the lower end-portion thereof, and

stripswhich form component parts of the collar are adhesively securedtogether and to the upper end-portion of the body. By soconstructing'the collar,,.it will have a thicker lower end-portionthereby when the collar is in engagement with the frustoconicalbody-portion, the outer face of the collar will be cylindrical, orformed with parallel or perpendicular sides, to serve as and form acap-engaging surface. Said collar may be made of thick paper such astag-stock and the like.

The preferred closing-cap used in conjunction with the carton abovedescribed, consists of a aper blank pressed into the form shown, avingaresilient flange 10, the diameter of the interior surface of which isslightly less than the diameter of the cylindrical cap engaging surfaceof-the collar, and the resiliency of the flange causes the same to fitover the collar tightly, while the cylindrical shape of the engagingsurface of the flange and collar provide for a long contact area; A truecylindrical surface is usuallyonly approximated in the manufacture ofthe, collar described above, because of the material used and the factthat a perfectcylindrical surface is not necessary for practicalpurposesr, Therefore, it is obvious that the cap-engaging surface of acollar such as above described may vary slightly.

The entire carton and closing cap are impregnated and coated withparafiin-wax which renders the same impervious to ordinary liquids. I

The collar is here shown as arranged exteriorly on the body-portion butit may be otherwise arranged on the body-portion. While the collar ishere shown as a separate member-or element attached to the upperend-portion of the body and such construction embodies the preferredform of my invention, itwill be obvious that it may be otherwisearranged in connection with, or r associated with, the body-portion.

. I claim:- v

A cap. receiving collar for cartons of frusto-conical body shapecolnprising a cylindrical section of uniform thlck-ness throughout, aninner section of approXi- .duced thickness'from the lower to the upperedge thereof, said sections being secured v together to present a collarhaving the relatively inner and outer surfaces inclining toward eachother from the lower edge of the 10 collar to the upper edge thereof.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

, LUKE W. FARMER,

' Witnesses: 1

'- AMos L. TAYLOR,

GEORGE BOHLMAN.

